In short, caustics are the phenomena of dispersed light bouncing off of reflective surfaces or through translucent materials. This scene utilizes the "caustic" variety. There are two separate types of photons that can be used in Brazil. Lastly, the "Photon Map" section of the Brazil settings dialog has been enabled for this scene.
#RENDERING FOR RHINO JEWELRY EASY FULL#
A full explanation of these settings can be found in the Render Cache tutorial as they are not specific to jewelry models. The parameters circled were chosen in order to dramatically reduce the render time required for the resolution shown. The second section of the Brazil settings dialog to customize is the "Render Cache". In addition to the skylight, this scene has two point lights in it which are also being used for both direct and global illumination. Note that in order to utilize GI for the skylight the number of bounces needs to be set to at least 2. The "skylight" has been turned on for direct illumination as well as global illumination. Let's first look at the "Luma Server" section. The detailed controls are shown for each panel and the areas changed from the default settings have been circled in red.
These are the Photon Map, Luma Server and Render Cache sections. Below are screen shots of three of the sections from this dialog. The "renderer settings" dialog available from the Brazil menu in Rhino will contain all the Brazil settings for your Rhino file. You can download the tutorial file used to create the renderings and screen shots shown to help you learn these methods directly. This process is similar to rendering other types of products with the additional use of features such as caustic photons and custom index of reflection and refraction values. This tutorial is an explanation of techniques for rendering jewelry models in Brazil for Rhino.
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